Answer
$\text{angle of elevation}$
Work Step by Step
When a person is looking up at an object, the acute angle formed by his/her line-of-sight with the horizontal line is called the angle of elevation.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 7 - Applications of Trigonometric Functions - Section 7.1 Right Triangle Trigonometry ; Applications - 7.1 Assess Your Understanding - Page 540: 6
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